<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <link rel="stylesheet" href="lx2.html">

    <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
    <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
    <!--[if lt IE 9]>
      <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
      <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
    <![endif]-->
  </head>
  <body>
    <button class="navbar-toggle collapsed" type="button"  data-toggle="collapse" data-target=".navbar-collapse"></button>

      <!-- jumbotron -->
    <div class="container">
        <div class="jumbotron">
        <h1>hello world</h1>
        <p>asdfghjkl</p>
        <a class="btn btn-primary btn-lg">Learn more</a>
        </div>
    </div>


    <!-- page-header -->
    <div class="container">
        <div class="page-header" style="text-align: center;">
            <h1>Examle page header<small>Subtext for header</small></h1>
          </div>
    </div>
    
    
    <!-- thumbnail -->
    <div class="container">
        <div class="row">
            <div class="col-md-3">
                <div class="thumbnail">
                    <img src="./img/242.svg" alt="242*200">
                    <div class="caption">
                        <h1>hello world</h1>
                        <p>asdfghjkl</p>
                        <a class="btn btn-primary">Learn more</a>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="thumbnail">
                    <img src="./img/242.svg" alt="242*200">
                    <div class="caption">
                        <h1>hello world</h1>
                        <p>asdfghjkl</p>
                        <a class="btn btn-primary">Learn more</a>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="thumbnail">
                    <img src="./img/242.svg" alt="242*200">
                    <div class="caption">
                        <h1>hello world</h1>
                        <p>asdfghjkl</p>
                        <a class="btn btn-primary">Learn more</a>
                    </div>
                </div>
            </div>
            <div class="col-md-3">
                <div class="thumbnail">
                    <img src="./img/242.svg" alt="242*200">
                    <div class="caption">
                        <h1>hello world</h1>
                        <p>asdfghjkl</p>
                        <a class="btn btn-primary">Learn more</a>
                    </div>
                </div>
            </div>
        </div>
    </div>
    
    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
  </body>
</html>